Wheel back cavity groove processing equipment

ABSTRACT

Wheel back cavity groove processing equipment is disclosed in the present application, which includes a lower lifting system, a central brush system, groove brush systems, a synchronous clamping and rotating system, a left brush system, a right brush system, an upper lifting system and the like. The wheel back cavity groove processing equipment not only may be used for removing burrs from wheel back cavity grooves, but also may be used for removing burrs from bolt holes, a center hole, spoke edges and transverse corners, and simultaneously has the characteristics of high automation degree, high removal efficiency, advanced process, strong generality, and high safety and stability.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 201711398808.X, filed on Dec. 22, 2017, which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present application relates to a burr removing equipment, and specifically, to a wheel back cavity burr removing equipment.

BACKGROUND ART

In the production process of aluminum alloy wheels, a wheel having grooves at the edge of a back cavity is often encountered, burrs may be produced in the machining process of the grooves, these burrs at the special part are very difficult to process, and currently, there is no mature equipment available to effectively process the burrs at this part

SUMMARY OF THE INVENTION

The present application is aimed at providing wheel back cavity groove processing equipment, which not only may be used for removing burrs from wheel back cavity grooves, but also may be used for removing burrs from bolt holes, a center hole, spoke edges and transverse corners.

In order to fulfill the above aim, the technical solution of the present application is: wheel back cavity groove processing equipment, includes a frame, a cylinder I, lower guide posts, a rotary joint, a spline shaft, a servo motor I, a belt pulley I, a synchronous belt I, a belt pulley II, a lower fixed plate, lower guide sleeves, a spline sleeve, a bearing seat I, a lower lifting plate, guide rails I, racks I, servo motors II, servo electric cylinders I, turnover plates, bearing seats II, shafts I, small grinding heads, a spring, a sliding sleeve, a conical grinding head, a belt pulley III, an annular belt brush I, a fixed rack I, a servo motor III, a belt pulley IV, a servo electric cylinder II, a guide rail II, a sliding plate I, a guide rail III, an upper lifting plate, upper guide posts, upper guide sleeves, cylinders II, a sliding plate II, a guide rail IV, a servo electric cylinder III, a servo motor IV, a belt pulley V, a synchronous belt II, a fixed rack II, a belt pulley VI, a belt pulley VII, a fixed rack III, a belt pulley VIII, an annular belt brush II, sliding racks, a deflector rod, a gear I, a swivel, cylinders III, an upper fixed plate, a gear II, racks II, a guide rail V, a left sliding plate, left shafts, left bearing seats, V-shaped rollers, a servo electric cylinder IV, right shafts, right bearing seats, a right sliding plate, a cylinder IV, a servo motor V and a servo electric cylinder V.

A lower lifting system includes: the two cylinders III and the four lower guide sleeves are all fixed on the lower fixed plate, and the four lower guide posts matched with the lower guide sleeves are fixed below the lower lifting plate; and the output ends of the cylinders III are articulated with the lower part of the lower lifting plate.

A central brush system includes: the bearing seat I is fixed below the lower lifting plate; the spline sleeve is mounted inside the bearing seat I via a bearing; the spline shaft is matched with the spline sleeve; the cylinder I is fixed at the bottom of the frame, and the rotary joint is fixed at the output end of the cylinder I; the upper part of the rotary joint is connected with the lower part of the spline shaft; the belt pulley I is fixed below the spline sleeve; the servo motor I is fixed below the lower lifting plate via a transition flange; the belt pulley II is fixed at the output end of the servo motor I; the belt pulley I is connected with the belt pulley II via the synchronous belt; the spline shaft is matched with the bearing seat I; the deflector rod is fixed above the spline shaft; the spring is mounted inside the sliding sleeve, and reaches the top of the spline shaft; and the conical grinding head is fixed at the top of the sliding sleeve.

A groove brush system includes; the sliding rack is mounted above the lower lifting plate via the guide rail I; the rack I is fixed on the sliding rack, and engaged with the gear I; the upper part of the gear I is provided with a groove matched with the deflector rod, and the lower part is mounted above the lower lifting plate via the swivel; the bearing seat II is mounted above the turnover plate; the shaft I is mounted inside the bearing seat II via a bearing; the small grinding head is fixed above the shaft I; the servo motor II is fixed below the turnover plate, and the output end thereof is connected with the lower part of the shaft I; the lower part of the turnover plate is articulated with the upper part of the sliding rack; the lower part of the servo electric cylinder I is articulated with the upper part of the sliding rack, and the output end thereof is articulated with the turnover plate; this equipment includes a plurality of sets of groove brush systems, which are uniformly distributed around the center line of the gear I and correspond to bolt holes in number.

A synchronous clamping and rotating system includes: the gear II is fixed above the upper fixed plate; the left sliding plate is mounted above the upper fixed plate via the guide rail V; the rack II is fixed below the left sliding plate, and the two left bearing seats are fixed above the left sliding plate; the two left shafts are mounted inside the left bearing seats via bearings; a V-shaped roller is respectively mounted above the two left shafts; the right sliding plate is mounted above the upper fixed plate via the guide rail V; a rack II is fixed below the right sliding plate, and the two right bearing seats are fixed above the right sliding plate; the rack II below the left sliding plate and the rack II below the right sliding plate are simultaneously engaged with the gear II; the two right shafts are mounted inside the right bearing seats via bearings; a V-shaped roller is respectively mounted above the two right shafts; the serve motor V is fixed below the right sliding plate, and the output end thereof is connected with the lower end of one right shaft; the cylinder IV is fixed on the right of the frame, and the output end thereof is connected with the right sliding plate.

A left brush system includes: the belt pulley III is mounted below the fixed rack. I; the belt pulley IV is mounted above the fixed rack I; the servo motor III is mounted on the side of the fixed rack I, and the output end thereof is connected with a shaft of the belt pulley IV; the annular belt brush I is simultaneously connected with the belt pulley III and the belt pulley IV; the top of the fixed rack I is mounted below the sliding plate I via the guide rail II; the sliding plate I is mounted below the upper lifting plate via the guide rail III; the servo electric cylinder II is fixed on the left side of the upper lifting plate, and the output end thereof is connected with the sliding plate I; the servo electric cylinder IV is fixed at one end of the sliding plate I, and the output end thereof is connected with the fixed rack I.

A right brush system includes: the belt pulley VIII is mounted below the fixed rack; the fixed rack is fixed below the fixed rack II; the belt pulley VI is mounted on the right side of the belt pulley VII, and mounted below the fixed rack II; the servo motor IV is fixed above a middle division plate of the fixed rack II, and the belt pulley V is fixed at the output end of the servo motor IV; the belt pulley V is connected with the belt pulley VI via the synchronous belt II; the belt pulley VII is connected with the belt pulley VIII via the annular belt brush II; the top of the fixed rack II is mounted below the sliding plate II via the guide rail IV; the top of the sliding plate II is mounted below the upper lifting plate via the guide rail III; the servo electric cylinder III is fixed on the right side of the upper lifting plate, and the output end thereof is connected with the sliding plate II; the servo electric cylinder V is fixed at one end of the sliding plate II, and the output end thereof is connected with the fixed rack II.

An upper lifting system includes: the four upper guide posts are fixed above the upper lifting plate; the four upper guide sleeves matched with the upper guide posts are fixed at the top of the frame; the two cylinders II are also fixed at the top of the frame, and the output ends thereof are articulated with the upper part of the upper lifting plate.

In the working process, the cylinder IV drives the four V-shaped rollers via the gear II and the racks II to synchronously clamp a wheel; the servo motor I drives the spline sleeve and the spline shaft via the belt pulley I, the belt pulley II and the synchronous belt to rotate; the spline shaft drives the conical grinding head via the sliding sleeve to rotate; the spring keeps the conical grinding head in a floating state; the servo motors II drive the small grinding heads via the shafts I to rotate; the servo electric cylinders I adjust the angles of the small grinding heads in the groove brush systems via the turnover plates, so that the small grinding heads are all in a vertical state; the cylinder I drives the deflector rod on the spline shaft via the rotary joint to decline, so that the deflector rod is matched with the groove above the gear I; the servo motor I drives the spline shaft via the synchronous belt I to rotate again, and simultaneously drives the gear I to rotate; the gear I can adjust the position of each small grinding head via the rack I, so that the axis of the small grinding head is on the pitch circle of each bolt hole of the wheel; the servo motor V drives the clamped wheel to rotate, so that the axis of each bolt hole of the wheel is just coaxial with the axis of each small grinding head; the cylinders III drive the small grinding heads and the conical grinding head via the lower guide posts to ascend, to remove burrs thereon when they contact the bolt holes and the center hole of the wheel; after removal, the position of each small grinding head is continuously adjusted via the gear I and the rack I to the edge of the wheel back cavity, and at the same time, the angle of each small grinding head is adjusted via the servo electric cylinder I to contact a groove at the edge of the wheel back cavity; the servo motor V drives the wheel via the right shafts to rotate, and burrs at the grooves can be removed; the servo motor III drives the belt pulley IV to rotate, and the annular belt brush I can rotate via the belt pulley III; the servo electric cylinder II can drive the annular belt brush I via the guide rail III to move left and right; the servo motor IV can drive the annular belt brush I via the guide rail II to move front and back; the cylinders II can drive the annular belt brush I via the upper guide posts to move up and down; burrs at the transverse corners of spokes can be removed via rotation of the annular belt brush I and movement thereof in three directions; the servo motor IV drives the belt pulley VII via the belt pulley V, the belt pulley VI and the synchronous belt II to rotate, and can drive the annular belt brush II via the belt pulley VIII to rotate; the servo electric cylinder III can drive the annular belt brush II via the guide rail III to move left and right; the servo electric cylinder V can drive the annular belt brush II via the guide rail IV to move front and back; the cylinders II can drive the annular belt brush II via the upper guide posts to move up and down; and burrs at the edges of the spokes can be removed via rotation of the annular belt brush II and movement thereof in three directions.

The present application not only may be used for removing burrs from wheel back cavity grooves, but also may be used for removing burrs from bolt holes, a center hole, spoke edges and transverse corners, and simultaneously has the characteristics of high automation degree, high removal efficiency, advanced process, strong generality, and high safety and stability.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a front view of wheel back cavity groove processing equipment of the present application.

FIG. 2 is a left view of the wheel back cavity groove processing equipment of the present application.

FIG. 3 is a right view of the wheel back cavity groove processing equipment of the present application.

In which, 1-frame, 2-cylinder 1, 3-lower guide post, 4-rotary joint, 5-spline shaft, 6-servo motor I, 7-belt pulley I, 8-synchronous belt I, 9-belt pulley II, 10-lower fixed plate, 11-lower guide sleeve, 12-spline sleeve, 13-bearing seat I, 14-lower lifting plate, 15-guide rail I, 16-rack I, 17-servo motor II, 18-servo electric cylinder I, 19-turnover plate, 20-bearing seat II, 21-shaft I, 22-small grinding head, 23-spring, 24-sliding sleeve, 25-conical grinding head, 26-belt pulley III, 27-annular belt brush I, 28-fixed rack I, 29-servo motor III, 30-belt pulley IV, 31-servo electric cylinder II, 32-guide rail II, 33-sliding plate I, 34-guide rail III, 35-upper lifting plate, 36-upper guide post, 37-upper guide sleeve, 38-cylinder II, 39-sliding plate II, 40-guide rail IV, 41-servo electric cylinder III, 42-servo motor IV, 43-belt pulley V, 44-synchronous belt II, 45-fixed rack II, 46-belt pulley VI, 47-belt pulley VII, 48-fixed rack III, 49-belt pulley VIII, 50-annular belt brush II, 51-sliding rack, 52-deflector rod, 53-gear I, 54-swivel, 55-cylinder III, 56-upper fixed plate, 57-gear II, 58-rack II, 59-guide rail V, 60-left sliding plate, 61-left shaft, 62-left bearing seat, 63-V-shaped roller, 64-servo electric cylinder IV, 65-right shaft, 66-right bearing seat, 67-right sliding plate, 68-cylinder IV, 69-servo motor V, 70-servo electric cylinder V.

DETAILED DESCRIPTION OF THE INVENTION

Specific details and working conditions of equipment provided by the present application will be described below in combination with the accompanying drawings.

The equipment includes a frame 1, a cylinder 12, lower guide posts 3, a rotary joint 4, a spline shaft 5, a servo motor I 6, a belt pulley I 7, a synchronous belt I 8, a belt pulley II 9, a lower fixed plate 10, lower guide sleeves 11, a spline sleeve 12, a bearing seat I 13, a lower lifting plate 14, guide rails I 15 racks I 16, servo motors II 17, servo electric cylinders I 18, turnover plates 19, bearing seats II 20, shafts I 21, small grinding heads 22, a spring 23, a sliding sleeve 24, a conical grinding head 25, a belt pulley III 26, an annular belt brush I 27, a fixed rack I 28, a servo motor III 29, a belt pulley IV 30, a servo electric cylinder II 31, a guide rail II 32, a sliding plate I 33, a guide rail III 34, an upper lifting plate 35, upper guide posts 36, upper guide sleeves 37, cylinders II 38, a sliding plate II 39, a guide rail IV 40, a servo electric cylinder III 41, a servo motor IV 42, a belt pulley V 43, a synchronous belt II 44, a fixed rack II 45, a belt pulley VI 46, a belt pulley VII 47, a fixed rack III 48, a belt pulley VIII 49, an annular belt brush II 50, sliding racks 51, a deflector rod 52, a gear I 53, a swivel 54, cylinders III 55, an upper fixed plate 56, a gear II 57, racks II 58, a guide rail V 59, a left sliding plate 60, left shafts 61, left bearing seats 62, V-shaped rollers 63, a servo electric cylinder IV 64, right shafts 65, right bearing seats 66, a right sliding plate 67, a cylinder IV 68, a servo motor V 69 and a servo electric cylinder V 70.

A lower lifting system includes: the two cylinders III 55 and the four lower guide sleeves 11 are all fixed on the lower fixed plate 10, and the four lower guide posts 3 matched with the lower guide sleeves 11 are fixed below the lower lifting plate 14; and the output ends of the cylinders III 55 are articulated with the lower part of the lower lifting plate 14.

A central brush system includes: the bearing seat I 13 is fixed below the lower lifting plate 14; the spline sleeve 12 is mounted inside the bearing seat I 13 via a bearing; the spline shaft 5 is matched with the spline sleeve 12; the cylinder I 2 is fixed at the bottom of the frame 1, and the rotary joint 4 is fixed at the output end of the cylinder I 2; the upper part of the rotary joint 4 is connected with the lower part of the spline shaft 5; the belt pulley I 7 is fixed below the spline sleeve 12; the servo motor I 6 is fixed below the lower lifting plate 14 via a transition flange; the belt pulley II 9 is fixed at the output end of the servo motor I 6; the belt pulley I 7 is connected with the belt pulley II 9 via the synchronous belt 8; the spline shaft 5 is matched with the bearing seat I 13; the deflector rod 52 is fixed above the spline shaft 5; the spring 23 is mounted inside the sliding sleeve 24, and reaches the top of the spline shaft 5; and the conical grinding head 25 is fixed at the top of the sliding sleeve 24.

A groove brush system includes: the sliding rack 51 is mounted above the lower lifting plate 14 via the guide rail I 15; the rack I 16 is fixed on the sliding rack 51, and engaged with the gear 53; the upper part of the gear I 53 is provided with a groove matched with the deflector rod 52, and the lower part is mounted above the lower lifting plate 14 via the swivel 54; the bearing seat II 20 is mounted above the turnover plate 19; the shaft I 21 is mounted inside the bearing seat II 20 via a bearing; the small grinding head 22 is fixed above the shaft I 21; the servo motor II 17 is fixed below the turnover plate 19, and the output end thereof is connected with the lower part of the shaft I 21; the lower part of the turnover plate 19 is articulated with the upper part of the sliding rack 51; the lower part of the servo electric cylinder I 18 is articulated with the upper part of the sliding rack 51, and the output end thereof is articulated with the turnover plate 19; this equipment includes a plurality of sets of groove brush systems, which are uniformly distributed around the center line of the gear I 53 and correspond to bolt holes in number.

A synchronous clamping and rotating system includes: the gear II 57 is fixed above the upper fixed plate 56; the left sliding plate 60 is mounted above the upper fixed plate 56 via the guide rail V 59; the rack II 58 is fixed below the left sliding plate 60, and the two left bearing seats 62 are fixed above the left sliding plate 60; the two left shafts 61 are mounted inside the left bearing seats 62 via bearings; a V-shaped roller 63 is respectively mounted above the two left shafts 61; the right sliding plate 67 is mounted above the upper fixed plate 56 via the guide rail V 59; a rack II 58 is fixed below the right sliding plate 67, and the two right bearing seats 66 are fixed above the right sliding plate 67; the rack II 58 below the left sliding plate 60 and the rack II 58 below the right sliding plate 67 are simultaneously engaged with the gear II 57; the two right shafts 65 are mounted inside the right bearing seats 66 via bearings; a V-shaped roller 63 is respectively mounted above the two right shafts 65; the servo motor V 69 is fixed below the right sliding plate 67, and the output end thereof is connected with the lower end of one right shaft 65; the cylinder IV 68 is fixed on the right of the frame 1, and the output end thereof is connected with the right sliding plate 67.

A left brush system includes: the belt pulley III 26 is mounted below the fixed rack I 28; the belt pulley IV 30 is mounted above the fixed rack I 28; the servo motor III 29 is mounted on the side of the fixed rack I 28, and the output end thereof is connected with a shaft of the belt pulley IV 30; the annular belt brush I 27 is simultaneously connected with the belt pulley III 26 and the belt pulley IV 30; the top of the fixed rack I 28 is mounted below the sliding plate I 33 via the guide rail II 32; the sliding plate I 33 is mounted below the upper lifting plate 35 via the guide rail III 34; the servo electric cylinder II 31 is fixed on the left side of the upper lifting plate 35, and the output end thereof is connected with the sliding plate 33; the servo electric cylinder IV 64 is fixed at one end of the sliding plate I 33, and the output end thereof is connected with the fixed rack I 28.

A right brush system includes: the belt pulley VIII 49 is mounted below the fixed rack 48; the fixed rack 48 is fixed below the fixed rack II 45; the belt pulley VI 46 is mounted on the right side of the belt pulley VII 47, and mounted below the fixed rack II 45; the servo motor IV 42 is fixed above a middle division plate of the fixed rack II 45, and the belt pulley V 43 is fixed at the output end of the servo motor IV 42; the belt pulley V 43 is connected with the belt pulley VI 46 via the synchronous belt II 44; the belt pulley VII 47 is connected with the belt pulley VIII 49 via the annular belt brush II 50; the top of the fixed rack II 45 is mounted below the sliding plate II 39 via the guide rail IV 40; the top of the sliding plate II 39 is mounted below the upper lifting plate 35 via the guide rail III 34; the servo electric cylinder III 41 is fixed on the right side of the upper lifting plate 35, and the output end thereof is connected with the sliding plate II 39; the servo electric cylinder V 70 is fixed at one end of the sliding plate II 39, and the output end thereof is connected with the fixed rack II.

An upper lifting system includes: the four upper guide posts 36 are fixed above the upper lifting plate 35; the four upper guide sleeves 37 matched with the upper guide posts 36 are fixed at the top of the frame 1; the two cylinders II 38 are also fixed at the top of the frame 1, and the output ends thereof are articulated with the upper part of the upper lifting plate 35.

In the working process, the cylinder IV 68 drives the four V-shaped rollers 63 via the gear II 57 and the racks II 58 to synchronously clamp a wheel; the servo motor I 6 drives the spline sleeve 12 and the spline shaft 5 via the belt pulley I 7, the belt pulley II 9 and the synchronous belt 8 to rotate; the spline shaft 5 drives the conical grinding head 25 via the sliding sleeve 24 to rotate; the spring 23 keeps the conical grinding head 25 in a floating state; the servo motors II 17 drive the small grinding heads 22 via the shafts I 21 to rotate; the servo electric cylinders I 18 adjust the angles of the small grinding heads 22 in the groove brush systems via the turnover plates 19, so that the small grinding heads 22 are all in a vertical state; the cylinder I 2 drives the deflector rod 52 on the spline shaft 5 via the rotary joint 4 to decline, so that the deflector rod 52 is matched with the groove above the gear I 53; the servo motor I 6 drives the spline shaft 5 via the synchronous belt I 8 to rotate again, and simultaneously drives the gear I 53 to rotate; the gear I 53 can adjust the position of each small grinding head 22 via the rack I 16, so that the axis of the small grinding head 22 is on the pitch circle of each bolt hole of the wheel; the servo motor V 69 drives the clamped wheel to rotate, so that the axis of each bolt hole of the wheel is just coaxial with the axis of each small grinding head 22; the cylinders III 55 drive the small grinding heads 22 and the conical grinding head 25 via the lower guide posts 3 to ascend, to remove burrs thereon when they contact the bolt holes and the center hole of the Wheel; after removal, the position of each small grinding head 22 is continuously adjusted via the gear I 53 and the rack I 16 to the edge of the wheel back cavity, and at the same time, the angle of each small grinding head 22 is adjusted via the servo electric cylinder I 18 to contact a groove at the edge of the wheel back cavity; the servo motor V 69 drives the wheel via the right shafts 65 to rotate, and burrs at the grooves can be removed; the servo motor III 29 drives the belt pulley IV 30 to rotate, and the annular belt brush I 27 can rotate via the belt pulley III 26; the servo electric cylinder II 31 can drive the annular belt brush I 27 via the guide rail III 34 to move left and right; the servo motor IV 64 can drive the annular belt brush I 27 via the guide rail II 32 to move front and back; the cylinders II 38 can drive the annular belt brush I 27 via the upper guide posts 36 to move up and down; burrs at the transverse corners of spokes can be removed via rotation of the annular belt brush I 27 and movement thereof in three directions; the servo motor IV 42 drives the belt pulley VII 47 via the belt pulley V 43, the belt pulley VI 46 and the synchronous belt II 44 to rotate, and can drive the annular belt brush II 50 via the belt pulley VIII 47 to rotate; the servo electric cylinder III 41 can drive the annular belt brush II 50 via the guide rail III 34 to move left and right; the servo electric cylinder V 70 can drive the annular belt brush II 50 via the guide rail IV 40 to move front and back; the cylinders II 38 can drive the annular belt brush II 50 via the upper guide posts 36 to move up and down; and burrs at the edges of the spokes can be removed via rotation of the annular belt brush II 50 and movement thereof in three directions.

The foregoing descriptions of specific exemplary embodiments of the present application have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the application to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the application and their practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the present application, as well as various alternatives and modifications thereof. It is intended that the scope of the application be defined by the Claims appended hereto and their equivalents. 

What is claimed is:
 1. A wheel back cavity groove processing equipment, comprising a frame, a cylinder I, lower guide posts, a rotary joint, a spline shaft, a servo motor I, a belt pulley I, a synchronous belt I, a belt pulley II, a lower fixed plate, lower guide sleeves, a spline sleeve, a bearing seat I, a lower lifting plate, guide rails I, racks I, servo motors II, servo electric cylinders I, turnover plates, bearing seats II, shafts I, small grinding heads, a spring, a sliding sleeve, a conical grinding head, a belt pulley III, an annular belt brush I, a fixed rack I, a servo motor III, a belt pulley IV, a servo electric cylinder II, a guide rail II, a sliding plate I, a guide rail III, an upper lifting plate, upper guide posts, upper guide sleeves, cylinders II, a sliding plate II, a guide rail IV, a servo electric cylinder III, a servo motor IV, a belt pulley V, a synchronous belt II, a fixed rack II, a belt pulley VI, a belt pulley VII, a fixed rack III, a belt pulley VIII an annular belt brush II, sliding racks, a deflector rod, a gear I, a swivel, cylinders III, an upper fixed plate, a gear II, racks II, a guide rail V, a left sliding plate, left shafts, left bearing seats, V-shaped rollers, a servo electric cylinder IV, right shafts, right bearing seats, a right sliding plate, a cylinder IV, a servo motor V and a servo electric cylinder V, wherein: a lower lifting system comprises: the two cylinders III and the four lower guide sleeves are all fixed on the lower fixed plate, and the four lower guide posts matched with the lower guide sleeves are fixed below the lower lifting plate; and the output ends of the cylinders III are articulated with the lower part of the lower lifting plate; a central brush system comprises: the bearing seat I is fixed below the lower lifting plate; the spline sleeve is mounted inside the bearing seat I via a bearing; the spline shaft is matched with the spline sleeve; the cylinder I is fixed at the bottom of the frame, and the rotary joint is fixed at the output end of the cylinder I; the upper part of the rotary joint is connected with the lower part of the spline shaft; the belt pulley I is fixed below the spline sleeve; the servo motor I is fixed below the lower lifting plate via a transition flange; the belt pulley II is fixed at the output end of the servo motor I; the belt pulley I is connected with the belt pulley II via the synchronous belt; the spline shaft is matched with the bearing seat I; the deflector rod is fixed above the spline shaft; the spring is mounted inside the sliding sleeve, and reaches the top of the spline shaft; and the conical grinding head is fixed at the top of the sliding sleeve; a groove brush system comprises: the sliding rack is mounted above the lower lifting plate via the guide rail I; the rack I is fixed on the sliding rack, and engaged with the gear I; the upper part of the gear I is provided with a groove matched with the deflector rod, and the lower part is mounted above the lower lifting plate via the swivel; the bearing seat II is mounted above the turnover plate; the shaft I is mounted inside the bearing seat II via bearings; the small grinding head is fixed above the shaft I; the servo motor II is fixed below the turnover plate, and the output end of the servo motor II is connected with the lower part of the shaft I; the lower part of the turnover plate is articulated with the upper part of the sliding rack; the lower part of the servo electric cylinder I is articulated with the upper part of the sliding rack, and the output end of the servo electric cylinder I is articulated with the turnover plate; this equipment comprises a plurality of sets of groove brush systems, which are uniformly distributed around the center line of the gear I and correspond to bolt holes in number; a synchronous clamping and rotating system comprises: the gear II is fixed above the upper fixed plate; the left sliding plate is mounted above the upper fixed plate via the guide rail V; the rack II is fixed below the left sliding plate, and the two left bearing seats are fixed above the left sliding plate; the two left shafts are mounted inside the left bearing seats via bearings; a V-shaped roller is respectively mounted above the two left shafts; the right sliding plate is mounted above the upper fixed plate via the guide rail V; a rack II is fixed below the right sliding plate, and the two right bearing seats are fixed above the right sliding plate; the rack II below the left sliding plate and the rack II below the right sliding plate are simultaneously engaged with the gear II; the two right shafts are mounted inside the right bearing seats via bearings; a V-shaped roller is respectively mounted above the two right shafts; the servo motor V is fixed below the right sliding plate, and the output end of the servo motor V is connected with the lower end of one right shaft; the cylinder IV is fixed on the right of the frame, and the output end of the cylinder IV is connected with the right sliding plate; a left brush system comprises: the belt pulley III is mounted below the fixed rack I; the belt pulley IV is mounted above the fixed rack I; the servo motor III is mounted on the side of the fixed rack I, and the output end of the servo motor III is connected with a shaft of the belt pulley IV; the annular belt brush I is simultaneously connected with the belt pulley III and the belt pulley IV; the top of the fixed rack I is mounted below the sliding plate I via the guide rail II; the sliding plate I is mounted below the upper lifting plate via the guide rail III; the servo electric cylinder II is fixed on the left side of the upper lifting plate, and the output end of the servo electric cylinder II is connected with the sliding plate I; the servo electric cylinder IV is fixed at one end of the sliding plate I, and the output end of the servo electric cylinder IV is connected with the fixed rack I; a right brush system comprises: the belt pulley VIII is mounted below the fixed rack; the fixed rack is fixed below the fixed rack II; the belt pulley VI is mounted on the right side of the belt pulley VII, and mounted below the fixed rack II; the servo motor IV is fixed above a middle division plate of the fixed rack II, and the belt pulley V is fixed at the output end of the servo motor IV; the belt pulley V is connected with the belt pulley VI via the synchronous belt II; the belt pulley VII is connected with the belt pulley VIII via the annular belt brush II; the top of the fixed rack II is mounted below the sliding plate II via the guide rail IV; the top of the sliding plate II is mounted below the upper lifting plate via the guide rail III; the servo electric cylinder III is fixed on the right side of the upper lifting plate, and the output end of the servo electric cylinder III is connected with the sliding plate II; the servo electric cylinder V is fixed at one end of the sliding plate II, and the output end of the servo electric cylinder V is connected with the fixed rack II; an upper lifting system comprises: the four upper guide posts are fixed above the upper lifting plate; the four upper guide sleeves matched with the upper guide posts are fixed at the top of the frame; the two cylinders II are also fixed at the top of the frame, and the output ends of the two cylinders II are articulated with the upper part of the upper lifting plate. 